Have Cat Questions? Ask a Cat Vet Online.
I am so sorry you are having trouble. The problem is twofold.
1. Cement is porous and absorbs odors.
2. No detergent or even bleach is going to fool a cats nose. Even though you can no longer smell poop, the kitties can. You must saturate the area with an enzyme product like zero odor
to completely get rid of the smell. Next rub lemon on the spots. Cats HATE the smell of citrus. Then the cats will avoid the area.
It sounds like Hershey and Cadbury are all ready for Easter.
Please let me know how things go.
Please be so kind as to rate my answer with positive feedback; that is the only way I receive credit for my assistance. Thank you very much!Providing a positive rating will not end our conversation, should you need me for any follow-up. Simply click 'Reply' for clarification or additional information, if needed, at no additional charge.